Study of an Investigational Product, QLS-111, Provided as an Eyedrop, for Treatment of Normal Tension Glaucoma (NTG)

A randomized, active-controlled, multi-site, double-masked, pilot study to evaluate the safety and tolerability of QLS-111 0.015% versus Timolol maleate ophthalmic preservative free (PF) 0.5% ophthalmic solution in subjects with NTG. Primary objective is to evaluate the ocular and systemic safety and tolerability of QLS-111 0.015% compared to active control (Timolol).

Secondary objective is to evaluate the ocular hypotensive efficacy of QLS-111 0.015% with once daily evening (QPM) and twice daily (BID) dosing versus Timolol with QPM dosing.

Inclusion criteria

• 30 years or older
• Able to provide written acknowledgement of giving informed consent
• Best corrected visual acuity (BCVA) 20/200 or better
• NTG in both eyes with untreated IOP <21 mmHg at Visit 2 and morning assessment of Visit 3; IOP at morning assessment on Visits 2 and 3 doesn't differ more than 2 mmHg; has open iridocorneal angles, historic IOP <22 mmHg in either eye

Exclusion criteria

• History of angle closure glaucoma, narrow or occludable angle on gonioscope
• All secondary glaucomas
• Severe glaucomatous damage that would preclude safe washout of prescribed ocular hypotensive medications
• Previous glaucoma surgery, certain procedures (trabeculotomy, shunt/tubes, cyclodestructive procedure) (selective laser trabeculoplasty (SLT) allowed if done no earlier than 1 year from study, some minimally invasive glaucoma surgeries are allowed if done no earlier than 1.5 years from study)
• Ocular trauma, ocular infections, ocular inflammation, herpes simplex keratitis of eye
• Use of other ophthalmic concomitant medications during the study
• Refractive surgery
• Uncontrolled hypertension or hypotension
• Significant systemic or psychiatric disease
• Participation in other investigational trial 30 days prior to screening or previous enrollment and treatment with Qlaris investigational product
• Pregnant or lactating